Friday, August 12, 2022
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
FRIDAY, AUGUST 12, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0448E
SUNSET: 1849E
COOL AND DRY WITH A LIGHT NORTHERLY BREEZE….
Today was cooler with a great visibility of 85 miles.
Wind was on the lighter side, with north being the
main component. Dew points dropped into the low 50’s
as the observing day went on. A definite contrast to
the humidity of yesterday!
Most of the Boston Area is in an extreme drought, according to
the newly updated drought monitor. Total rain deficit on the
year is 10.56 inches.
This summer was the first time on record of having two separate heat
waves of six days or longer in a single year.
BHO Longest Heat Waves (1885-2022):
1) 9 days, Aug 11-19, 2002
2) 8 days, Aug 10-17, 1944
3) 7 days, Jul 22-28, 2016
4) 6 days, Aug 28 – Sep 2, 1953
6 days, Jul 24-29, 1963
6 days, Jul 16-21, 1977
6 days, Jul 6-11, 1988
6 days, Jul 16-21, 1991
6 days, Jul 15-20, 2013
6 days, Jul 19-24, 2022
6 days, Aug 4-9, 2022
Several temperature records were set or tied during the heat
wave in early August. Here they are…
8/4: High max of 96F, this beat the old record of 95F set in 1928
8/6: High max of 95F, this tied the record with 1931
High min of 72F, this tied the record with 1918 and 1924
8/7: High max of 96F, this beat the old record of 95F set in 1924
High min of 73F, this tied the record with 2018
8/8: High max of 97F, this beat the old record of 93F set in 1909
and 1949
High min of 75F, this beat the old record of 74F set in 2001
Records section written by Matthew Douglas!
The high so far today is 78F, which is 3 degrees below the normal
maximum of 81F. The low since midnight is 65F, which is 2 degrees
above the normal minimum of 63F.
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Today’s Observations:
7 A.M.
Weather: Scattered altocumulus and cirrocumulus, few
small cumulus
Temperature: 67F; Dew Point: 59F; Relative Humidity: 75%
Wind: N @ 8G12 kts
Sea-level pressure: 1014.6 mb; 29.96 in. Hg: rising, then
more slowly
Visibility: 85 miles
6-hr Max temp: 67F
6-hr Min temp: 64F
24-hr Precip: Trace
BHO SA 1155 130 SCT 250 SCT 85 146/67/59/3608G12/996/ FEW SML
CU ALQDS/ 8/159 51015 70000 10067 20064
10 A.M.
Weather: Broken cirrus, few small cumulus and altocumulus
Temperature: 77F; Dew Point: 54F; Relative Humidity: 45%
Wind: NW @ 4 kts, wind light and variable
Sea-level pressure: 1015.4 mb; 29.99 in Hg: rising, then
more slowly
Visibility: 80 miles
3-hr Precip: 0.00 ins.
BHO SA 1455 250 BKN 80 154/77/54/3104/999/ FEW SML CU ALQDS
FEW AC ALQDS WND L/V/ 8/182 51008
1 P.M.
Weather: Scattered cumulus, scattered altocumulus/castellanus,
broken cirrus/ cirrocumulus
Temperature: 82F, Dew point: 52F; Relative Humidity: 36%
Wind: NNW @ 8G16 kts
Sea-level pressure: 1014.6 mb; 29.96 in Hg: falling, then more rapidly
Visibility: 80 miles
6-hr Max temp: 83F
6-hr Min temp: 67F
6-hr Precip: 0.00 ins.
BHO SA 1755 50 SCT 130 SCT 250 BKN 80 146/82/52/3408G16/996/
8/289 56008 10083 20067
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SUMMARY FOR THURSDAY, AUGUST 11, 2022
TEMPERATURE (DEGREES F)
MAX…….79 NORMAL…..81
MIN…….65 NORMAL…..63
MEAN……72 NORMAL…..72
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……….0
TOTAL DEPARTURE FOR THE MONTH………………..+77 [+6.8 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY…………….0 DEPARTURE………0
TOTAL HEATING UNITS FOR THE MONTH…………….0 DEPARTURE……..-2
TOTAL HEATING UNITS FOR THE SEASON……………0 DEPARTURE……..-9
TOTAL HEATING UNITS LAST SEASON TO DATE………28 DEPARTURE…….-28
COOLING DEGREE DAYS (SEASON: JAN 2022 THRU DEC 2022)
TOTAL COOLING UNITS FOR YESTERDAY…………….7 DEPARTURE………0
TOTAL COOLING UNITS FOR THE MONTH…………..161 DEPARTURE…….+76
TOTAL COOLING UNITS FOR THE SEASON………….668 DEPARTURE……+196
TOTAL COOLING UNITS LAST SEASON TO DATE……..449 DEPARTURE……+219
PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….18 SSW @ 9:01 P.M.
AEROVANE……………….N/A
VECTOR #2 (Instantaneous)..19 @ 9:01 P.M.
DAVIS #2 ………………21 S @ 7:34 P.M.
RMY #2 (Instantaneous)…..18 SSW @ 9:02 P.M.
ASOS………..OUT OF SERVICE D/T RENOVATIONS
VECTOR #1……OUT OF SERVICE D/T RENOVATIONS
DAVIS #1…….OUT OF SERVICE D/T RENOVATIONS
RMY #1………OUT OF SERVICE D/T RENOVATIONS
MERLIN………OUT OF SERVICE D/T RENOVATIONS
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………13 SSW @ 9:04 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..15 @ 9:03 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………14 S @ 7:42 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..15 SSW @ 9:02 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……..OUT OF SERVICE D/T RENOVATIONS
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE….OUT OF SERVICE D/T RENOVATIONS
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…OUT OF SERVICE D/T RENOVATIONS
MAXIMUM 2-MINUTE RMY #1 AVERAGE……OUT OF SERVICE D/T RENOVATIONS
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL………6.3 S [151 total miles]
VECTOR #2……………….7.0
DAVIS #2………………..6.6 SSW
RMY #2………………….7.1 SSW
RMY #1……….OUT OF SERVICE D/T RENOVATIONS
ASOS…………OUT OF SERVICE D/T RENOVATIONS
VECTOR #1…….OUT OF SERVICE D/T RENOVATIONS
DAVIS #1……..OUT OF SERVICE D/T RENOVATIONS
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.13
TOTAL PRECIPITATION FOR THE MONTH (JULY)…….0.40 DEPARTURE…..-1.05
TOTAL PRECIPITATION FOR THE YEAR…………..21.59 DEPARTURE….-10.56
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PRELIMINARY CLIMATE SUMMARY FOR AUGUST CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/PEAK GUST/AERO/RMY GUST
AERO: Aerovane wind recording system gust
RMY: R.M. Young wind gust recording system
TSTM: Thunderstorm day (thunder heard some time during day)
….: Data not yet available, records not finalized
M: Missing data
8/1 85/66/76/+3/0.05/494/57 24 S AERO N/A RMY 26
8/2 93/66/80/+7/0.00/588/68 27 WSW AERO N/A RMY 29
8/3 88/68/78/+5/0.00/836/97 22 NNW AERO N/A RMY 23
8/4 96/68/82/+9/0.00/808/94 29 SSW AERO N/A RMY 31
8/5 96/72/84/+11/0.01/438/51 42 NW AERO N/A RMY 42 TSTM
8/6 95/72/84/+11/0.00/822/96 30 SSW AERO N/A RMY 31
8/7 96/73/85/+12/0.08/589/69 36 SW AERO N/A RMY 38 TSTM
8/8 97/75/86/+14/T/740/87 37 WSW AERO N/A RMY 39
8/9 97/63/80/+8/0.23/…/.. 33 NW AERO N/A RMY 34 TSTM
8/10 76/62/69/-3/0.03/…/.. 22 NE AERO N/A RMY 22
8/11 79/65/72/0/T/…/.. 18 SSW AERO N/A RMY 18
8/12 The low since midnight is 64F, the daily normal low is 63F
DAILY RECORDS
08/04/2022: NEW HIGH MAXIMUM TEMPERATURE RECORD OF 96F,
PREVIOUS RECORD WAS 95F SET IN 1928.
08/06/2022: TIED RECORD HIGH MAXIMUM OF 95F, ALSO SET IN 1931
TIED RECORD HIGH MINIMUM OF 72F, ALSO SET IN 1918 AND 1924
08/07/2022: NEW HIGH MAXIMUM TEMPERATURE RECORD OF 96F,
PREVIOUS RECORD WAS 95F SET IN 1924
TIED RECORD HIGH MINIMUM OF 73F, ALSO SET IN 2018
08/08/2022: NEW HIGH MAXIMUM TEMPERATURE RECORD OF 97F,
PREVIOUS RECORD WAS 93F SET IN 1909 AND 1949
NEW HIGH MINIMUM TEMPERATURE RECORD OF 75F,
PREVIOUS RECORD WAS 74F SET IN 2001
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR AUGUST 12
HIGH 99F IN 1944
LOW 48F IN 1930
PRECIP 1.89 INCHES IN 1979
PEAK GUST 50 MPH NE IN 1983
RECORDS FOR AUGUST 13
HIGH 98F IN 1944, 2002
LOW 47F IN 1902, 1957
PRECIP 2.92 INCHES IN 1989
PEAK GUST 52 MPH SSE IN 1963
TODAY’S REPORT PREPARED BY: Benjamin Turner
